Firmware upgrades for cameras are the norm, and it's not every day we see brands offering hardware upgrades. However, Canon announced this week that it will tweak the mode dial for its EOS 5D Mark II and EOS 7D.

The adjustment will allow the mode dial to be locked in place, much like the implementation on the EOS 60D. This will prevent the accidental changing of settings, which frustrate photographers, especially when they need to quickly take a shot.

The upgrade will cost roughly $100. However, users are required to bring their dSLR to the local Canon office during office hours for the engineers to replace the existing dial with the new one.